class_docstr: Test the ViiNCBaseFileHandler reader.
class_docstr_tok: ["Test","the","ViiNCBaseFileHandler","reader","."]
docstr: Test the standardize dims function.
docstr_tok: ["Test","the","standardize","dims","function","."]
code: def test_standardize_dims(self):
      """Test the standardize dims function."""
      test_variable = xr.DataArray(
          dims=("num_pixels", "num_lines"),
          name="test_data",
          attrs={"key_1": "value_lat_1", "key_2": "value_lat_2"},
          data=np.ones((10, 100)) * 1.0,
      )
      out_variable = self.reader._standardize_dims(test_variable)
      assert np.allclose(out_variable.values, np.ones((100, 10)))
      assert out_variable.dims == ("y", "x")
      assert out_variable.attrs["key_1"] == "value_lat_1"
  
file_path: satpy/satpy/tests/reader_tests/test_vii_base_nc.py
imports: import datetime
  import os
  import unittest
  import uuid
  from unittest import mock
  import numpy
  import pytest
  import xarray
  from netCDF4 import Dataset
  from satpy.readers.vii_base_nc import SCAN_ALT_TIE_POINTS, TIE_POINTS_FACTOR, ViiNCBaseFileHandler
label_desc: Use image node_id 5 for calling the TestViiNCBaseFileHandler obj's underlying member method code with example usage: obj.test_standardize_dims() without return types